Answer:
In contrast to the attractive force between two objects with opposite charges, two objects that are of like charge will repel each other. That is, a positively charged object will exert a repulsive force upon a second positively charged object.
Explanation:
<h2><em>Hope it has answered your question</em></h2>
Fe(OH)2 exhibits Fe2+, that is easily oxidized by oxigen present in the air.
Fe(OH)2 (green) + H2O - e- = Fe(OH)3 (brown) + H+
this half-reaction shows how Fe(OH)2 is oxidized to yield Fe(OH)3
As it is being oxidized, it loses an electron
O2 (in the air) + 2 H2O + 4 e- = 4 OH-
this half-reaction shows oxygen perfoming its oxidizing properties
You can see that it gains 4 electrons, which he receives from iron (iron loses electron, remember?) So overall electrons are being transferred from iron to oxygen. Iron is oxidized and oxygen is thus reduced.
Since the electrons lost in the first half-equation are the same as the ones gained in the second, lets multiply the first half-equation with the second:
4 Fe(OH)2 (green) + 4 H2O - 4e- = 4Fe(OH)3 (brown)<span> + 4 H+
</span>O2 (in the air) + 2 H2O + 4 e- <span>= 4 OH-
</span>------------------------------
4Fe(OH)2 (green) + O2 (in the air) + 6 H2O + 4 e- - 4 e- = 4Fe(OH)3 (brown) + 4 H+ + <span>4 OH-
</span><span>4 e- - 4 e- = 0
</span>and
4 H+ + <span>4 OH- = 4 H2O
</span>thus
4Fe(OH)2 (green) + O2 (in the air) + 6 H2O<span> = </span>4Fe(OH)3 (brown) + 4 H2O
4Fe(OH)2 (green) + O2 (in the air) + 2 H2O = <span>4Fe(OH)3 (brown)</span>
Yellow because Pangea all the continents were together
Explanation:
Energy pyramid refers to the representation of how the energy is transferred in the organism at each level in an ecosystem. The producers are kept at the lower level whereas the top carnivore at the top.
1. The energy linearly flows in the energy pyramid which can be represented in the form of the food chain. In a food chain, the energy flows when one organism eats another organism which after digestion provides energy.
2. the energy is transferred in a food chain according to ten per cent law which states that only ten per cent of energy will be transferred between the organism in a food chain.